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Message-ID: <f40be1e6-f877-4e32-96bb-d849916284e9@amd.com>
Date: Thu, 14 Sep 2023 14:19:46 +0530
From: Sandipan Das <sandipan.das@....com>
To: Jirka Hladky <jhladky@...hat.com>
Cc: Peter Zijlstra <peterz@...radead.org>,
Breno Leitao <leitao@...ian.org>,
Ingo Molnar <mingo@...hat.com>,
Arnaldo Carvalho de Melo <acme@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
Jiri Olsa <jolsa@...nel.org>,
Namhyung Kim <namhyung@...nel.org>,
Ian Rogers <irogers@...gle.com>,
Adrian Hunter <adrian.hunter@...el.com>,
Thomas Gleixner <tglx@...utronix.de>,
Borislav Petkov <bp@...en8.de>,
Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org,
"H. Peter Anvin" <hpa@...or.com>, leit@...com,
dcostantino@...a.com,
"open list:PERFORMANCE EVENTS SUBSYSTEM"
<linux-perf-users@...r.kernel.org>,
"open list:PERFORMANCE EVENTS SUBSYSTEM"
<linux-kernel@...r.kernel.org>, ananth.narayan@....com,
Ravi Bangoria <ravi.bangoria@....com>,
Michael Petlan <mpetlan@...hat.com>
Subject: Re: [PATCH] perf/x86/amd: Do not WARN on every IRQ
Hi Jirka,
Thanks for reporting back. Moving to the latest Family 19h microcode (link below) will fix the problem.
https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/tree/amd-ucode/microcode_amd_fam19h.bin
On 9/14/2023 2:03 PM, Jirka Hladky wrote:
> Hi Sandipan,
>
> here is the info from /proc/cpuinfo
>
> vendor_id : AuthenticAMD
> cpu family : 25
> model : 160
> model name : AMD EPYC 9754 128-Core Processor
> stepping : 2
> microcode : 0xaa0020f
>
>>2. Microcode patch level
> Is it the microcode string from cpuinfo provided above, or are you looking for something else?
>
> Thanks!
> Jirka
>
>
> On Wed, Sep 13, 2023 at 6:19 PM Sandipan Das <sandipan.das@....com <mailto:sandipan.das@....com>> wrote:
>
> Hi Jirka,
>
> Can you please share the following?
>
> 1. Family, Model and Stepping of the processor
> 2. Microcode patch level
> On 9/13/2023 8:00 PM, Jirka Hladky wrote:
> > Hi Sandipan,
> >
> > Is there any update on this issue? We have hit the issue, and it makes
> > the server pretty unusable due to the thousands of Call Traces being
> > logged.
> >
> > Thanks a lot!
> > Jirka
> >
> >
> > On Fri, Jun 16, 2023 at 5:34 PM Peter Zijlstra <peterz@...radead.org <mailto:peterz@...radead.org>> wrote:
> >>
> >> On Fri, Jun 16, 2023 at 08:13:22PM +0530, Sandipan Das (AMD) wrote:
> >>> The reserved bits should never be set. The purpose of the WARN_ON() is to catch such anomalies.
> >>> I am working out the details with Breno and will report back with a resolution.
> >>
> >> Thanks!
> >>
> >
> >
>
>
>
> --
> -Jirka
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